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Investigation on the xylitol aqueous-phase reforming performance for pentane production over Pt/HZSM-5 and Ni/HZSM-5 catalysts
Jiang, Ting1,2; Wang, Tiejun1; Ma, Longlong1; Li, Yuping1; Zhang, Qing1; Zhang, Xinghua1
2012-02-01
发表期刊APPLIED ENERGY
卷号90期号:1页码:51-57
摘要Pt/HZSM-5 and Ni/HZSM-5 catalysts were prepared and evaluated for aqueous-phase reforming (APR) reaction of xylitol. Effects of reaction temperature, pressure and metal loading on xylitol conversion and pentane selectivity were studied. Experiments over 4 wt% Pt/HZSM-5 catalysts showed that high temperature increased the xylitol conversion while high pressure led to the decrease of pentane selectivity. The xylitol conversion and pentane selectivity increased with the metal loading in the range of 0-3 wt%, but the values decreased as further increasing the metal loading to 5 wt% over both Ni/HZSM-5 and Pt/HZSM-5, indicating that higher metal loading would increase the rate of C-C bond cleavage compared to hydrogenation. Under the condition of 240 degrees C and 4 MPa, Ni/HZSM-5 and Pt/HZSM-5 with the same metal loading of 2 wt% showed similar xylitol conversion, while the primary had higher pentane selectivity of 95% than 58% of the latter. Ni has higher activity for pentane production than Pt during the APR reaction of xylitol, while Pt has stronger effect of C-C bond cleavage to produce lighter alkanes of C(1)-C(4). In order to investigate catalyst recyclability, 2 wt% Ni/HZSM-5 was reused and analyzed by TG characterization. It was found that considerable amount of coke and heavy hydrocarbons were formed on the catalyst surface, which could cover the active sites and cause catalyst deactivation. (C) 2011 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Aqueous-phase Reforming Alkane Production Xylitol Ni/hzsm-5 Pt/hzsm-5
WOS标题词Science & Technology ; Technology
DOI10.1016/j.apenergy.2011.03.034
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]MODIFIED NI CATALYSTS ; OXYGENATED HYDROCARBONS ; LIQUID ALKANES ; HYDROGEN GENERATION ; ETHYLENE-GLYCOL ; BIOMASS ; FUELS ; GLYCEROL ; SORBITOL ; PLATFORM
收录类别SCI ; ISTP
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000297426100009
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10158
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy, Guangzhou, Guangdong, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
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Jiang, Ting,Wang, Tiejun,Ma, Longlong,et al. Investigation on the xylitol aqueous-phase reforming performance for pentane production over Pt/HZSM-5 and Ni/HZSM-5 catalysts[J]. APPLIED ENERGY,2012,90(1):51-57.
APA Jiang, Ting,Wang, Tiejun,Ma, Longlong,Li, Yuping,Zhang, Qing,&Zhang, Xinghua.(2012).Investigation on the xylitol aqueous-phase reforming performance for pentane production over Pt/HZSM-5 and Ni/HZSM-5 catalysts.APPLIED ENERGY,90(1),51-57.
MLA Jiang, Ting,et al."Investigation on the xylitol aqueous-phase reforming performance for pentane production over Pt/HZSM-5 and Ni/HZSM-5 catalysts".APPLIED ENERGY 90.1(2012):51-57.
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